Filter unit, textile treatment apparatus and method

A filter unit suitable for filtering microfibres within a feed, the filter unit comprising:

• a) a housing;
• b) an inlet configured to allow the feed to enter the housing;
• c) an outlet configured to allow a filtered feed to exit the housing;
• d) a filter cage supporting one or more filter media, the filter cage being rotatably mounted and rotating about an axis of rotation within the housing, the filter media having pores with a mean pore size of no more than 100 microns;
• e) one or more baffle surfaces being located adjacent to at least a portion of the interior and/or exterior surfaces of the one or more filter media;
• the baffle surfaces and filter cage being configured such that during rotation of the filter cage, the one or more filter media move relative to the one or more baffle surfaces and turbulent flow of liquid when present in the filter unit is encouraged near the interior and/or exterior surface of the one or more filter media;
• f) a drive means for rotating the filter cage;
• g) the filter unit being configured such that feed from the inlet is directed towards the interior of the filter cage, the feed then passes through the one or more filter media and exits as a filtered liquid via the outlet.